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04-21-2018, 05:33 AM   #1
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Pixel shift and ISO, where does real world end and marketing begin?

Pixel shift and 1.2 zillion ISO were way down the list for why I chose the K-70. ISO and noise, at least on a visual level, is fairly easy even for a newbie to comprehend, although I would be interested in the level that post processing can clean for an "acceptable" image. Yes, I realize this is subjective. On the other "feature," I just read an article (a test) about pixel shift. The expert liked the technology but thought it was limited to particular subjects/situations, landscapes and products, but the advantage overall was slight and only became obvious when you enlarged to look at detail. My use would be landscape/architecture although I may mess around with some artsy "still-lifes." So, when to turn on pixel shift? When don't bother?

04-21-2018, 05:42 AM - 2 Likes   #2
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How long is a rope? There is no clear answare to your question. Personally I leave the higher part of the ISO scale unused, but I don't have a clear limit. Sometimes I push the ISO more then other times. Regardless of PS or not.

However be aware that PS are stitching and averaging 4 images, resulting in lower noise. In terms of shot noise the 4 shots of PS at ISO 12800 equals using a singe exposure of ISO 3200 since the sum exposure time will be equal.
04-21-2018, 05:44 AM - 4 Likes   #3
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QuoteOriginally posted by gump Quote
Pixel shift and 1.2 zillion ISO were way down the list for why I chose the K-70. ISO and noise, at least on a visual level, is fairly easy even for a newbie to comprehend, although I would be interested in the level that post processing can clean for an "acceptable" image. Yes, I realize this is subjective. On the other "feature," I just read an article (a test) about pixel shift. The expert liked the technology but thought it was limited to particular subjects/situations, landscapes and products, but the advantage overall was slight and only became obvious when you enlarged to look at detail. My use would be landscape/architecture although I may mess around with some artsy "still-lifes." So, when to turn on pixel shift? When don't bother?
I won't give up a chance at an image for pixel shift, it's not worth it. But I have time and conditions are right I'll use it. Even for my dog if he's holding still.



I've done enough comparison images to understand what my useage should be. For me, that's an outstanding image where I want to push it over the top, and I have time. For me, moving around and trying different focal lengths and angles is my main modus operandi. Pixel shift really isn't all that useful. But it's given me some great images, and a good percentage of the time better than the initial image I took without it. I try and process blind so I don't actually use the pixel shift image unless it's better than the normal image, and sometimes the straight up image is better, but, when the pixel shift image works, it is better even on the 2650x1600 version. It's not just pixel peeping.

On this image, the Pixel shifted version was clearly better, small, big, cropped, whatever.

Last edited by normhead; 04-22-2018 at 06:57 AM.
04-21-2018, 06:10 AM   #4
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QuoteOriginally posted by Simen1 Quote
How long is a rope? There is no clear answare to your question. Personally I leave the higher part of the ISO scale unused, but I don't have a clear limit. Sometimes I push the ISO more then other times. Regardless of PS or not.

However be aware that PS are stitching and averaging 4 images, resulting in lower noise. In terms of shot noise the 4 shots of PS at ISO 12800 equals using a singe exposure of ISO 3200 since the sum exposure time will be equal.
Thanks. The ISO-PS relationship is something I will "test." I am a early morning person and sunset if i am still awake. So, this may well be important in particular low light. The learning curve is indeed steep.

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